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4 State Trucks has a large selection of high quality aftermarket International Fuel Tanks. Our cylindrical tanks come in a variety of capacities up to 68 inch length and 150 gallon; 53 gallon and 63 gallon D Shape fuel tanks with or without a step; and rectangular tanks in 28 gallon or 60 gallon capacities. Secure your new Navistar fuel tank with aftermarket International tank brackets and top off your purchase with fittings, splitters, pickup tubes, trim, liners, a cover and more.

International Fuel Tanks

Whether you’re running a ProStar, DuraStar, LoneStar, or part of the 9000 Series, your fuel tank setup matters. This lineup of aftermarket fuel tanks and fuel system accessories for International semi trucks helps you run longer, refuel smarter, and protect your investment with heavy-duty components built for commercial use.

Fuel Tank Options Built to Fit Your International

Our tanks come in a variety of sizes—from 26 to 150 gallons—and configurations, including: - Front-fill, rear-fill, and D-shaped designs - Polished or raw aluminum fuel tanks for reduced weight and better corrosion resistance - Steel tanks for rugged durability in demanding conditions
Each tank is made to meet or exceed OEM standards and fits popular International models for a direct, no-hassle install. You can further upgrade your rig with better structural mounting on your International truck frame and chassis, or swap out exhaust parts that are located nearby. You can also swap out any worn-out fuel tank hoses and lines to your International.

Fuel Tank Accessories to Complete Your Setup

Fuel tanks are only part of the story. This category includes all the extras you need to replace, repair, or upgrade your full fuel system: - Fuel tank straps and brackets for secure mounting. - Sending units and block-off plates. - Tank liner kits to extend fuel tank lifespan. - Anti-siphon tubes for added protection. - Filler neck caps, drain plugs, and crossover lines. - Hydraulic oil tanks for auxiliary systems and PTO setups.

Why Upgrade Your International’s Fuel System?

- Prevent costly leaks and breakdowns with reliable, road-tested tanks - Boost your truck’s fuel range with larger capacity options - Improve safety with modern anti-siphon and venting features - Restore your truck’s appearance with polished aluminum tanks and fresh mounting gear - Stay compliant with DOT regulations by replacing aging or damaged fuel components
Built to handle the grind. Designed to keep you moving. Upgrade your International truck's fuel system with high-quality aftermarket fuel tanks, straps, caps, and more—all in one place. Shop now and keep your rig fueled and ready for the next mile.

Frequently Asked Questions About International Fuel Tanks

What International truck models and years are these fuel tanks compatible with?

Our fuel tanks are designed to fit International models including the ProStar (2008-2016), LoneStar (2009-2017), 9900i (2000-2016), 9400i (2000-2016), and 5900i SBA (2001-2011). Each product listing specifies exact model compatibility. For trucks with aftermarket modifications or custom chassis setups, we recommend calling our tech support at 1-888-875-7787 to verify fitment before ordering.

What's the difference between aluminum and steel fuel tanks, and which should I choose?

Aluminum tanks are lighter (reducing overall vehicle weight by 50-100 lbs), resist corrosion better, and typically last 15-20 years. Steel tanks cost about 30% less upfront, are more impact-resistant, and easier to repair if damaged. Most owner-operators prefer aluminum for weight savings and longevity, while fleet operators often choose steel for the lower initial cost. Both meet DOT requirements when properly maintained.

Do I need special brackets or hardware to install these tanks, or can I reuse my existing mounting equipment?

Most replacement tanks use your existing mounting straps and brackets if they're in good condition. However, we strongly recommend inspecting all hardware during installation. Replace any straps showing cracks, excessive rust, or stretching. New strap kits typically cost $45-85 and ensure proper tank security. Some aftermarket tanks may require different strap lengths - check the product specifications or contact us for guidance.

What tank sizes and shapes are available, and how do I determine the right capacity for my truck?

We stock round and D-shaped tanks from 50 to 150 gallons, with 100-120 gallon sizes being most common for long-haul applications. Measure your existing tank's diameter and length, plus the available frame rail space. D-shaped tanks maximize capacity in tight spaces, while round tanks are typically more affordable. Consider your typical routes - regional drivers often choose 80-100 gallon tanks, while OTR drivers prefer 120-150 gallons to reduce fuel stops.

How difficult is the installation process, and what tools or skills are required?

Installation typically takes 2-4 hours per tank for someone with basic mechanical skills. You'll need standard hand tools, a floor jack or tank jack, and ideally a helper for positioning. The main challenges are safely draining/removing the old tank (diesel weighs 7 lbs per gallon) and ensuring proper fuel line connections. Professional installation runs $150-300 per tank. Always disconnect the battery, drain fuel completely, and follow DOT regulations for fuel system work.


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